22204133 has 4 divisors (see below), whose sum is σ = 25376160. Its totient is φ = 19032108.

The previous prime is 22204121. The next prime is 22204139. The reversal of 22204133 is 33140222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33140222 = 2 ⋅16570111.

It is a cyclic number.

It is not a de Polignac number, because 22204133 - 2⁸ = 22203877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1586003 + ... + 1586016.

It is an arithmetic number, because the mean of its divisors is an integer number (6344040).

Almost surely, 2^22204133 is an apocalyptic number.

It is an amenable number.

22204133 is a deficient number, since it is larger than the sum of its proper divisors (3172027).

22204133 is an equidigital number, since it uses as much as digits as its factorization.

22204133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172026.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22204133 is about 4712.1261655435. The cubic root of 22204133 is about 281.0679158542.

Adding to 22204133 its reverse (33140222), we get a palindrome (55344355).

The spelling of 22204133 in words is "twenty-two million, two hundred four thousand, one hundred thirty-three".